CVE-2026-91741 Memory corruption in Chrome

High 8.8 Published Updated

A type confusion flaw in Chrome's CacheStorage allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-91741?

CVE-2026-91741 is a high-severity memory corruption vulnerability in Google Chrome, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Type confusion in CacheStorage in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Weakness: CWE-843

Which versions are affected by CVE-2026-91741?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-91741?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-91741 being exploited?

There is no known exploitation of CVE-2026-91741 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-91741, ECHO-db3c-385e-1c68, GHSA-9q2q-wv9m-h4rp, MINI-8p6w-g2mw-v9c4.

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